GSS HDM 660 T, Руководство по сборке

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- 5 - HDM 660 T
2.2 m
eaning of the symbols used
Important note
—> General note
– /
– / Optional use of the buttons
• Performing works
2.3 t
eChniCal data
The requirements of the following EU directives are met:
2006/95/EC, 2004/108/EC
The product fulfils the guidelines and standards for CE labelling (page 41).
Unless otherwise noted all values are specified as "typical".
HF input (DVB-S):
Frequency range: ....................................................... 910 … 2150 MHz
Input level: .............................................................. 60 dBμV … 80 dBμV
Input impedance: ............................................................................ 75 Ω
Return loss: .....................................................................................8 dB
Symbol rate: ............................................................... 2 … 45 MSymb/s
Remote power supply: ................................12 V / 350 mA (via SAT inputs)
COFDM modulator
Signal processing: ......................................................... DIN EN 300744
Transmission modes: ................................................................ 2k, 4k, 8k
Types of modulation: ........................................ QPSK, 16 QAM, 64 QAM
Code rates: ............................................................
1
/
2
,
2
/
3
,
3
/
4
,
5
/
6
,
7
/
8
Guard intervals: .........................................................
1
/
4
,
1
/
8
,
1
/
16
,
1
/
32
HF output:
Frequency range: ..................................................... 42.0 … 860.0 MHz
Channels: ..........................................................C5 … C12, C21 … C69
Output level: ............................................................................. 82 dBμV
Output impedance: ......................................................................... 75 Ω
Connections:
SAT inputs: ............................................................................ 2 F sockets
HF output: .............................................................................. 1 F socket
Connection strip (20-pin): .......................for supply voltages and control circuits
Common Interface: ..........................1 (several channels can be descrambled)